Originally Posted by DeepO
I guess that stuff that has more connotations with modern times can lower the escapism factor for some.

Or D&D and "fantasy" novels screwed people perception of historical warfare.

Firearms were invented in the 12th century (blackpowder in the 9th century). Plate mail were invented in the 13th century and limited to really rich people. Both were used together in Europe until plate mail were "phased out". Guns stayed around though.